Roundabouts Database Index

28782 Results

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City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
New Berlin, WI Waukesha Co. United States	CTH Y (Racine Ave.) / I-43 SB Ramps (42.93426, -88.15884)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.2182	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2009	Opened November 2009. ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Morgan Ave. / Morgan Crescent / Singleton Ave. (42.93441, -81.27261)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2011). Splitter islands added 2015.
London, ON Middlesex Canada	Raleigh Blvd. / Tillmann Rd. (42.93469, -81.30829)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 110.0000	Other (At-Grade) Single-Lane	2010	completed 2010 based on Google historical aerials
Ballston Lake, NY Saratoga Co. United States	Round Lake Rd. / Chango Dr. (42.93547, -73.81398)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 0 Driveways 32.3526	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Round Lake Rd. / Raylinsky Rd. (42.93576, -73.80841)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 34.1012	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Bateman Trl. / Paul Peel Ave. (42.93592, -81.25534)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2009).
London, ON Middlesex Canada	Southdale Rd. W / Colonel Talbot Rd. (42.93669, -81.31730)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2023	https://www.cbc.ca/news/canada/london/new-roundabout-at-colonel-talbot-and-southdale-road-opens-with-1-lane-1.6986818
Malta, NY Saratoga Co. United States	Curry Rd. / Round Lake Bypass (42.93726, -73.80083)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1004	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Hales Corners, WI Milwaukee Co. United States	STH 24 (W Forest Home Ave.-Janesville Rd.) / W Forest Home Ave. (42.93732, -88.04641)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 48.0902	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Singleton Ave. / Morgan Ave. (42.93793, -81.27158)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 35.0000	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012).
Buffalo, NY Erie Co. United States	Aero Dr. / Holtz Dr. (42.94093, -78.71780)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.1038	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Gaines Township, MI Genesee Co. United States	Elms Rd. / Hill Rd. (42.94270, -83.81070)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.9830	Other (At-Grade) Single-Lane	2016	Rural. ICD estimated from Google Maps linework.
Hales Corners, WI Milwaukee Co. United States	Grange Ave. / 116th St. (42.94460, -88.05808)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2220	Other (At-Grade) Single-Lane	2003	Opened October 15, 2003. ICD estimated from Google Maps linework.
Cheektowaga, NY Erie Co. United States	Harlem Rd. / Cleveland Dr. (42.94493, -78.78408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.5872	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	ICD estimated from Google Maps linework.
Grand Blanc Township, MI Genesee Co. United States	E Hill Rd. / Belsay Rd. (42.94531, -83.59820)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.1019	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Buffalo, NY Erie Co. United States	Aero Dr. / S. Youngs Rd. (42.94547, -78.72490)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.5988	Other (At-Grade) Single-Lane	2010	Year completed estimated. ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Luther Forest Blvd. / Rte 67 (42.94714, -73.78510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.9691	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Bedford, NH Hillsborough Co. United States	Meetinghouse Rd. / Gault Rd. (42.94741, -71.49442)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.8432	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Round Lake, NY Saratoga Co. United States	Rte. 9-Rte. 67 / Round Lake Bypass (42.94849, -73.78979)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.4525	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Wickerson Rd. / Ironwood Rd. (42.94861, -81.35030)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2009).
New Berlin, WI Waukesha Co. United States	Moorland Rd. (CTH O) / I-43 NB Ramps / Rockridge Rd. (42.94913, -88.10900)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2068	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2007	Opened September 2007. ICD estimated from Google Maps linework.
Port Huron, MI St. Clair Co. United States	Range Rd. / Dove Rd. / I-94 EB Off-Ramp (42.94948, -82.50186)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Unknown	2020	https://www.thetimesherald.com/story/news/2020/09/02/range-and-dove-roads-roundabout-set-open-soon/5691922002/
Oregon, WI Dane Co. United States	CTH MM / CTH M (42.94950, -89.37981)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.9613	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Series of 3 roundabouts. ICD estimated from Google Maps linework.
Cheektowaga, NY Erie Co. United States	Harlem Rd. / Kensington Rd. / Wehrle Dr. (42.94968, -78.78409)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.0870	Other (At-Grade) Single-Lane	2008	Closely spaced roundabouts 100 feet apart. ICD estimated from Google Maps linework.
Keene, NH Cheshire Co. United States	Court St. / Allen Ct. / Cheshire Medical Center entrance (42.94991, -72.29057)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 26.2257	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Cheektowaga, NY Erie Co. United States	Harlem Rd. / Kensington Rd. / Lexington Ter. (42.95023, -78.78391)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7223	Other (At-Grade) Single-Lane	2008	Closely spaced roundabouts 100 feet apart. ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Evans Blvd. / Meadowgate Blvd. (42.95077, -81.17398)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2009).
Oregon, WI Dane Co. United States	CTH MM / US 14 EB Ramps (42.95128, -89.37859)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7217	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	Series of 3 roundabouts. ICD estimated from Google Maps linework.
Oregon, WI Dane Co. United States	CTH MM / US 14 WB Ramps (42.95272, -89.37769)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.9591	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	Series of 3 roundabouts. ICD estimated from Google Maps linework.
New Berlin, WI Waukesha Co. United States	Moorland Rd. (CTH O) / I-43 SB Ramps (42.95341, -88.10897)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 67.3087	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2008	Opened November 2008. ICD estimated from Google Maps linework.
Grand Rapids, MI Kent Co. United States	Wealthy St. SE / Lafayette Ave. SE (42.95582, -85.66185)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.4749	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Grand Rapids, MI Kent Co. United States	Wealthy St. SE / Jefferson Ave. SE (42.95588, -85.66405)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9641	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Luther Forest Blvd. / Rocket Way (42.95595, -73.76094)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2015	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Shortsville, NY Ontario Co. United States	CR 28 / Shortsville Rd. (42.95597, -77.27692)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.democratandchronicle.com/story/news/2020/10/19/roundabout-opens-county-road-28-and-shortsville-road-farmington-ny/3706261001/
Malta, NY Saratoga Co. United States	Luther Forest Blvd. / Cordero Blvd. (42.95753, -73.75259)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.9485	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Genesee, WI Waukesha Co. United States	STH 83 / STH 59 (Genesee Rd.) (42.95798, -88.36010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4592	Other (At-Grade) Single-Lane	2011	Opened October 7, 2011. ICD estimated from Google Maps linework.
Grand Rapids, MI Kent Co. United States	Cherry St. SE / Jefferson Ave. SE (42.95950, -85.66412)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.7254	Other (At-Grade) Single-Lane	2007	Next to hospital. ICD estimated from Google Maps linework.
Makhachkala, Dagestan Makhachkala Russia	ulitsa Yaragskogo / ulitsa Generala Omarova / ulitsa Erlikha / ulitsa Yaragskogo (42.95998, 47.49098)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Parking along circulatory roadway.
Town of Tonawanda, NY Erie Co. United States	Englewood Ave. / Parker Blvd. (42.96148, -78.83856)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2022	https://www.wgrz.com/article/news/local/roundabouts-town-of-tonawanda-complaints/71-42172d23-11ec-47fa-b45f-7d1e94ab3a3c
London, ON Middlesex Canada	Meadowgate Blvd. / Reardon Blvd. (42.96234, -81.18034)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 35.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2006).
Keene, NH Cheshire Co. United States	NH 12A (Maple Ave.) / Court St. / Old Walpole Rd. (42.96305, -72.30895)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.7161	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Rte 9 / Stonebreak Rd. (42.96317, -73.79144)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.4560	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Stone Break Extension / Hermes Rd. / Rocket Way (42.96331, -73.76376)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4559	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Farmington, NY Ontario Co. United States	CR 8 / CR 41 (42.96351, -77.31853)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2015
London, ON Middlesex Canada	Sheffield Blvd. / Holbrook Dr. (42.96463, -81.15170)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2018-2020).
Kimball Township, MI St. Clair Co. United States	Range Rd. / Griswold Rd. (42.96533, -82.50230)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.3369	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Stonebreak Rd. / Luther Forest Blvd. (42.96551, -73.75795)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2012	Add-lane right-turn bypass lane on southeast leg. Year Completed estimated (2011-2013). Southeast leg added 2015-2018.
Makhachkala, Dagestan Makhachkala Russia	prospekt Aligadzhi Akushinskogo / shosse Druzhby Narodov Ramps (42.96667, 47.39554)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Grand Island, NY Erie Co. United States	South Pkwy. / W River Pkwy. / Beaver Island Park Rd. (42.96786, -78.95880)	Rotary Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 146.3040	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Bedford, NH Hillsborough Co. United States	Donald St. / Market Basket center entrance (42.96921, -71.50647)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.9653	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Town of Tonawanda, NY Erie Co. United States	Parker Blvd. / Decatur Rd. (42.96947, -78.83816)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2022	https://www.wgrz.com/article/news/local/roundabouts-town-of-tonawanda-complaints/71-42172d23-11ec-47fa-b45f-7d1e94ab3a3c
Makhachkala, Dagestan Makhachkala Russia	prospekt Shamilya / ulitsa Abubakarova / ulitsa Dakhadayeva (42.96949, 47.49173)	Other Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Hamburger shaped.
Dodgeville, WI Iowa Co. United States	US 18 / Bennett Rd. (42.96960, -90.11338)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6954	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Opened October 7, 2008. ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Rte 67 (Dunning St.) / State Farm Pl. (42.96991, -73.80676)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 43.6952	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Rte 67 (Dunning St.) / I-87 SB Ramps (42.97024, -73.80309)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2006	Painted spiral next to central island. Part of a series of 5 roundabouts.
Malta, NY Saratoga Co. United States	Rte 67 (Dunning St.) / I-87 NB Ramps (42.97052, -73.80057)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2006	Painted spiral next to central island. Part of a series of 5 roundabouts.
Malta, NY Saratoga Co. United States	Rte 67 (Dunning St.) / Kelch Dr. / Blacksmith Dr. (Malta Commons) (42.97068, -73.79804)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2006	Part of a series of 5 roundabouts.
Malta, NY Saratoga Co. United States	Rte 67 (Dunning St.) / US 9 (42.97116, -73.79296)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2006	Part of a series of 5 roundabouts.
Malta, NY Saratoga Co. United States	Rte 108 (Dunning St.) / Fox Wander Rd. / Partridge Drum (42.97179, -73.78532)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2073	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Rte 108 (Dunning St.) / Plains Rd. (42.97257, -73.77570)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7115	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Caledonia, NY Livingston Co. United States	Rte 5 / Rte 383 (42.97311, -77.85300)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.0896	Other (At-Grade) Single-Lane	2005	Resigned and restriped traffic circle. Previously controlled by circle ICD estimated from Google Maps linework.
Flint, MI Genesee Co. United States	W Bristol Rd. / I-75 NB Ramps / / David St. (42.97349, -83.72376)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.9450	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Town of Tonawanda, NY Erie Co. United States	Parker Blvd. / Harrison Ave. (42.97525, -78.83778)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2022	https://www.wgrz.com/article/news/local/roundabouts-town-of-tonawanda-complaints/71-42172d23-11ec-47fa-b45f-7d1e94ab3a3c
Victor, NY Ontario Co. United States	Rte 96 (E Main St.) / Lynaugh Rd. (42.98010, -77.39823)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://13wham.com/news/local/new-roundabout-opens-at-route-96lynaugh-rd-intersection-in-victor
Ridgeway, WI Iowa Co. United States	CR BB / Prairie Rd. / Ridgevue Rd. (42.98142, -90.01018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2013-2019).
Makhachkala, Dagestan Makhachkala Russia	prospekt Akushinskogo / ulitsa Magomedtagirova / prospekt Ali-Gadzhi Akushinskogo / ulitsa Gayadara Gadzhiyeva (42.98337, 47.47037)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Kimball, MI St. Clair Co. United States	Lapeer Rd. / Allen Rd. (42.98365, -82.52408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.9380	Other (At-Grade) Single-Lane	2018	https://www.thetimesherald.com/story/news/local/2018/08/01/lapeer-roundabout-opening-traffic-thursday/881947002/ ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Trafalgar St. / Hale St. (42.98579, -81.19280)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9471	Other (At-Grade) Single-Lane	2010	Built on a overpass above Canadian National Railway tracks. Replaced two T-intersections and an at-grade rail crossing. Named the Charley Fox Memorial Overpass and Roundabout ICD estimated from Google Maps linework.
London, ON Middlesex Canada	Beaverbrook Ave. / Oakcrossing Rd. (42.98694, -81.30524)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011).
London, ON Middlesex Canada	Cherrywood Trl. / Bluegrass Dr. (42.98728, -81.31882)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2013-2015).
London, ON Middlesex Canada	Beaverbrook Ave. / Whetherfield St. (42.98758, -81.30997)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012).
London, ON Middlesex Canada	Beaverbrook Ave. / Bluegrass Dr. (42.98836, -81.31543)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2003-2006).
Genesee, WI Waukesha Co. United States	STH 83 / Sunset Dr. (42.98855, -88.38001)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.4401	Other (At-Grade) Single-Lane	2015	Yield-controlled right-turn bypass lane on north leg. ICD estimated from Google Maps linework.
Mendon, NY Monroe Co. United States	NY 65 / NY 251 (42.99061, -77.57766)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8180	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Welland, ON Niagara Canada	Hwy 27 (E Main St.) / Hwy 406 (42.99357, -79.22298)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 57.6555	Other (At-Grade) Multilane (3+ Lane)	2013	Year Completed estimated (2010-2015). ICD estimated from Google Maps linework.
Fitchburg, WI Dane Co. United States	Nobel Dr. / Fahey Glen (42.99461, -89.41188)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2018	Southwest and southeast legs stubbed.
Town of Tonawanda, NY Erie Co. United States	E Park Dr. / Pirson Pkwy. (42.99503, -78.89792)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 57.9120	Other (At-Grade) Single-Lane	2015
Kitahiroshima City, Hokkaido Japan	Nishinosato (42.99590, 141.51999)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2023	https://www.sorachi.pref.hokkaido.lg.jp/kk/skk/flink/133492.html
London, ON Middlesex Canada	Coronation Dr. / Carriage Way (42.99640, -81.32622)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2006
London, ON Middlesex Canada	Coronation Dr. / Lawson Rd. (42.99659, -81.32142)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2006-2009).
Malta, NY Saratoga Co. United States	Steeplechase Blvd. / Stewards Way (42.99660, -73.78901)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands on three legs.
Stoughton, WI Dane Co. United States	CTH N / (parking) (42.99687, -89.20044)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Year Completed estimated (2017-2018).
Orange City, IA Sioux Co. United States	SR 10 (8th St. SE) / Jay Ave. (42.99743, -96.03708)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.youtube.com/watch?v=ZFEW-ApSdqQ
London, ON Middlesex Canada	Brunswick Ave. / Coronation Dr. (42.99836, -81.32060)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2006
Batavia, NY Genesee Co. United States	Rte 33 / Rte 98 (42.99869, -78.19249)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.1808	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Creston, MI Kent Co. United States	Monroe Ave. NW / Knapp St. NE / Riverside Park Dr. NE (42.99924, -85.67037)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2014	https://www.mlive.com/news/grand-rapids/2013/06/4_roundabouts_cycle_track_plan.html
Stoughton, WI Dane Co. United States	CTH N / I-90 EB Ramps (43.00063, -89.20077)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.9600	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2018	Year Completed estimated (2017-2018).
Fitchburg, WI Dane Co. United States	Lacy Rd. / Haight Farm Rd. (43.00164, -89.39327)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6727	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Fitchburg, WI Dane Co. United States	Lacy Rd. / Fahey Glen (43.00174, -89.41176)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.4443	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Stoughton, WI Dane Co. United States	CTH N / I-90 WB Ramps (43.00259, -89.20044)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.9600	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2018	Year Completed estimated (2017-2018).
Madison, WI Dane Co. United States	Stonebridge Dr. / Heather Glen Dr. / Country Ln. (43.00360, -89.50690)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2005
Manchester, NH Hillsborough Co. United States	Londonderry Turnpike / Candia Rd. / Manchester Rd. (43.00400, -71.39258)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 76.2000	Other (At-Grade) Single-Lane	1940	Pedestrian access to central island.
Manchester, NH Hillsborough Co. United States	Goffstown Rd. / Eddy Rd. / Amoskeag St. / I-293 Ramps (43.00402, -71.47507)	Rotary Existing	Uncontrolled Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Warwick, ON Lambton Canada	Hwy 79 (Egremont Rd.) / Nauvoo Rd. (43.00424, -81.87951)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2022	https://www.lambtononline.ca/en/news/roundabout-construction-complete-at-nauvoo-and-egremont-road-intersection.aspx
Fitchburg, WI Dane Co. United States	E Cheryl Pkwy. / Fahey Glen (43.00451, -89.41212)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2000-2004). Third leg added 2018-2019; future fourth leg.
Buffalo, NY Erie Co. United States	Audubon Pkwy. / Lee Rd. (43.00547, -78.78589)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.4296	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
London, ON Middlesex County Canada	Lambton Dr. / Oxford Dr. (43.00616, -81.27515)	Traffic Calming Circle Existing	Unknown Unknown	5 Approaches 0 Driveways 38.4291	Other (At-Grade) Single-Lane		Constructed sometime in the 1970s. Functional Class: Local ICD estimated from Google Maps linework.
Clarence Center, NY Erie Co. United States	Renaldo Circle (43.00637, -78.65408)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Grand Rapids, MI Kent Co. United States	Monroe Ave. NE / Guild St. NE (43.00642, -85.66828)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.9612	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2016). ICD estimated from Google Maps linework.
Fitchburg, WI Dane Co. United States	Lacy Rd. / Cheryl Pkwy. (43.00643, -89.39114)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.9225	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.